Solving by Collecting Variables and Constants
To solve , observe that variable terms ( and ) and constant terms ( and ) appear on both sides of the equation. Because , designate the left side as the variable side and the right side as the constant side.
Step 1 — Remove the variable term from the constant side: Since is on the constant side, subtract from both sides using the Subtraction Property of Equality:
Combine like terms on the left by subtracting the decimal coefficients: . The equation simplifies to . Now the variable appears only on the left.
Step 2 — Remove the constant from the variable side: The constant is on the variable side, so subtract from both sides:
Step 3 — Isolate the variable using the Division Property of Equality: Because is multiplied by the decimal coefficient , divide both sides by :
Step 4 — Check by substitution: Replace with in the original equation:
Because both sides are equal, is confirmed as the correct solution. This example demonstrates that the collecting technique applies identically when the coefficients are decimals rather than integers or fractions. Subtracting decimal coefficients () and dividing by a decimal () follow the same arithmetic rules used for whole numbers, so the overall strategy remains unchanged.
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A project manager is balancing a budget represented by the equation 25x + 1000 = 15x + 2500. According to the standard strategy for 'collecting variables and constants', what is the primary objective of this step?
A warehouse supervisor is comparing the costs of two storage options using the equation 8x + 150 = 5x + 300. To simplify the equation into the form ax = b, the supervisor must move all variable terms to one side and all '____' terms to the opposite side.
A logistics coordinator is using the equation 15x + 500 = 12x + 800 to compare the total costs of two shipping vendors. To solve this, they must use the strategy of 'collecting variables and constants on separate sides'. Match each part of this strategy to its correct description.
A project manager is using the strategy of 'collecting variables and constants on separate sides' to solve the equation 15x + 2500 = 12x + 4000. True or False: To solve this correctly, the manager is mathematically required to move all terms containing the variable 'x' to the left side of the equal sign.
A project coordinator is comparing the total costs of two different vendor contracts using the equation 15x + 500 = 12x + 800. To apply the strategy of 'collecting variables and constants on separate sides,' arrange the following steps in the correct order as prescribed by the strategy.
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A procurement officer is comparing the total costs of two different supply contracts using the equation $12x + 500 = 9x + 800$. According to the strategy for 'collecting variables and constants on separate sides,' what are the two specific functional names assigned to the sides of the equal sign to organize the terms?
An inventory manager is comparing two procurement plans using the equation $10x + 1500 = 7x + 3000$. According to the strategy for 'collecting variables and constants on separate sides,' why is a preliminary rearrangement required before this equation can be solved?
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A payroll specialist is adjusting two employee records that currently have the same total hours worked. If the specialist subtracts the same amount of unpaid break time from both records, which mathematical property justifies that the remaining hours for both employees are still equal?
In a retail inventory system, if two store locations have the same number of units in stock and both sell the exact same number of units today, their remaining stock levels will still be equal. This is a real-world application of the ____ Property of Equality.
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In a corporate payroll system, if two employees have the same gross pay and the same amount is deducted from both for health insurance, the Subtraction Property of Equality justifies that their remaining net pay amounts will still be equal.
In a corporate accounting or data management environment, maintaining the balance of equations is a fundamental task. Match each aspect of the Subtraction Property of Equality with its corresponding description or representation.
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A facilities manager is overseeing two office buildings that currently have an equal number of workstations. If the manager removes the exact same number of workstations from both buildings during a renovation, which statement is true according to the Subtraction Property of Equality?
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When calculating unit costs for a company inventory, which mathematical property states that for any numbers a, b, and c (where c is not 0), if a = b, then a/c = b/c?
In a warehouse management system, if the total weight of a shipment is represented by the equation 25w = 500, a supervisor can solve for the weight of a single unit (w) by dividing both sides of the equation by 25. This mathematical step is justified by the ____ Property of Equality.
In a professional setting, if a manager is using the equation 12x = 1200 to find a monthly expense, the Division Property of Equality allows them to divide only the left side of the equation by 12 to isolate the variable x.
In a corporate inventory setting, you might use the equation to find the cost of a single unit. Match each component of the Division Property of Equality with its correct description.
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In a technical audit of a financial software's calculation engine, a developer must document the mathematical basis for isolating variables. Arrange the following steps in the correct order to represent the formal definition and application of the Division Property of Equality.
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A data analyst is auditing a financial formula that uses the equation to calculate a monthly service fee (). To isolate the variable, the analyst applies the Division Property of Equality. According to this property, what is the essential condition for the divisor to ensure the resulting equation remains valid?
In a company's technical manual for financial modeling, the Division Property of Equality is defined as a rule that 'preserves the equality' of an equation. What does the phrase 'preserves the equality' specifically mean in this context?
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A logistics coordinator uses the equation 4x + 10 = 50 to calculate shipping costs, where 'x' is the weight of a package in pounds. To verify if a weight of 10 pounds is a solution to this equation, arrange the standard verification steps in the correct order.
In a business analytics role, you are tasked with verifying if a specific value is a 'solution' to a performance equation. Which of the following best describes the definition of a solution in this context?
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A project coordinator is verifying if a specific labor cost is a solution to a construction budget equation. The first procedural step in this verification is to ________ the labor cost value for the variable wherever it appears in the equation.
A project coordinator is verifying if a specific cost estimate is a solution to a budget formula. If the variable 'c' appears in multiple places within the formula, where should the coordinator substitute the estimate to correctly follow the first step of the verification process?
A logistics manager is verifying if a specific fuel surcharge 's' is a solution to a transportation cost equation. According to the standard three-step verification process, what must be done with the expressions on the left and right sides of the equals sign immediately after the surcharge value has been substituted?
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A project manager is solving the equation 7.8x + 4 = 5.4x - 8 to balance two different project budgets. To solve for x by collecting variables on the left and constants on the right, place the following steps in the correct order.
A logistics coordinator is using the equation 7.8x + 4 = 5.4x - 8 to compare the operational costs of two different delivery routes. Match each mathematical step used in the solution process with its specific purpose.
A financial analyst is using the equation 7.8x + 4 = 5.4x - 8 to compare the growth rates of two investment funds. To begin solving for x by collecting all variable terms on the left side of the equation, which mathematical action should be performed first?
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A small business owner is using the equation 7.8x + 4 = 5.4x - 8 to compare the costs of two different shipping providers. After simplifying the equation to 2.4x = -12, the owner must divide both sides of the equation by ____ to find the final value of x.
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A quality control technician has finished solving the cost-balance equation $7.8x + 4 = 5.4x - 8x = -5-5$ back into both sides of the original equation to ensure that both sides result in the same value.
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A project manager is verifying that x = -5 is the correct solution for the budget equation 7.8x + 4 = 5.4x - 8. When -5 is substituted into both sides of the equation, what identical numerical value is produced to confirm the solution is correct?
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